Home / 10,387.09-14,334.13-5,910.81

Finding the Fourth Proportional to 10,387.09, 14,334.13 and 5,910.81

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Solution

The fourth proportional to 10,387.09, 14,334.13 and 5,910.81 is: 8,156.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,387.09 : 14,334.13 = 5,910.81 : x
  2. Step 2: Convert to fraction form
    10,387.09/14,334.13 = 5,910.81/x
  3. Step 3: Cross multiply
    10,387.09x = 14,334.13 × 5,910.81
  4. Step 4: Simplify right side
    10,387.09x = 84,726,272.58
  5. Step 5: Solve for x
    x = 84,726,272.58/10,387.09
  6. Step 6: Final answer
    x = 8,156.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.